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Why Do They Have Different Eyes?

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Let's take a look at these fish the MOCNESS nets brought up! This deep water fish is usually found between 1,460m and 3,500m. This is a juvenile, or not yet an adult. If you look closely it's almost like they don't have eyes. These fish actually have what remains of photoreceptive tissue, so instead of having eyes like we do, their eyes are beneath their bones. The "eyes" have no lenses but they can detect light. Can you picture it? It's like when you close your eyes on a really sunny day. You can still "see" some of the light, right? Try it next time you're outside.

b2ap3_thumbnail_Inops-Murrayi.jpg

 

Here is another fish with different eyes! This deep water fish has eyes that face towards the surface of the water and are adapted to see faint light or to key in on bioluminescence. We've talked about bioluminescence before, do you remember?

b2ap3_thumbnail_deep-water-fish-scopelarchus-analis.jpg

 

 Leave a comment below If you have any questions for our scientists! Until next time!

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Nicole's love for animals and nature started at a young age during her summer vacations with her grandmother. As a teen she started volunteering at the San Antonio Zoo and realized she could never leave nature behind. For the DEEPEND project, Nicole manages the Kid's Blog and all the social media sites. Her goal is to provide the science of this project to a larger audience, specifically targeting children. She hopes to inspire the next generation of researchers and biologists. Nicole now works as a Conservation Technician at the San Antonio Zoo.

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Guest Saturday, 28 November 2020